Multi-stratified and Stub DLL Calling in Embedded Virtual Instrument

摘要

Unlike development on computer, Windows CEbased dynamic link library (DLL) will be called incorrectly with LabVIEW. The paper introduces transplanting of FacketCE as well as DLL calling method in virtual instrument. The hardware consists of ARM microprocessor, RAM, ROM, touch panel, Ethernet controller, etc. The software is Windows CE S.O used for develop LabVIEW applications. Firstly, PacketCE was modified to create original pointer-type network data capture DLLs. Then multi-stratified DLL calling method was proposed, it provides counterpart DLLs which encapsulate pointer-type functions for LabVIEW, and stub DLL technology was adopted to verify the method is practicable. Finally, the application was tested on Windows CE 5.0 device and lite version of conventional electrical signal acquisition system implemented with LabVIEW was realized.